442100004 has 24 divisors (see below), whose sum is σ = 1042204128. Its totient is φ = 145847040.

The previous prime is 442100003. The next prime is 442100051. The reversal of 442100004 is 400001244.

It is not an unprimeable number, because it can be changed into a prime (442100003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188742 + ... + 191069.

It is an arithmetic number, because the mean of its divisors is an integer number (43425172).

Almost surely, 2^442100004 is an apocalyptic number.

It is an amenable number.

442100004 is an abundant number, since it is smaller than the sum of its proper divisors (600104124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442100004 is a wasteful number, since it uses less digits than its factorization.

442100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379915 (or 379913 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 442100004 is about 21026.1742597173. The cubic root of 442100004 is about 761.7986048181.

Adding to 442100004 its reverse (400001244), we get a palindrome (842101248).

The spelling of 442100004 in words is "four hundred forty-two million, one hundred thousand, four".